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<?php |
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namespace PubPeerFoundation\PublicationDataExtractor\Resources\Extractors; |
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use Tightenco\Collect\Support\Arr; |
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class EutilsEfetch extends Extractor implements ProvidesPublicationData, ProvidesIdentifiersData, ProvidesAuthorsData, ProvidesJournalData |
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{ |
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/** |
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* Create search tree. |
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*/ |
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protected function getDataFromDocument() |
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{ |
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$this->searchTree = $this->document->{'PubmedArticle'}; |
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} |
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/** |
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* Extract and format data needed for the Publication Model. |
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*/ |
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public function extractPublicationData() |
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{ |
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$this->output['publication'] = [ |
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'title' => get_string($this->searchTree, 'MedlineCitation.Article.ArticleTitle'), |
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'url' => (string) 'http://www.ncbi.nlm.nih.gov/pubmed/'.get_string($this->searchTree, 'MedlineCitation.PMID'), |
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'published_at' => date_from_pub_date(data_get($this->searchTree, 'MedlineCitation.Article.Journal.JournalIssue.PubDate')), |
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'abstract' => get_string($this->searchTree, 'MedlineCitation.Article.Abstract.AbstractText'), |
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]; |
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} |
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/** |
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* Extract and format data needed for the Identifiers Relationship |
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* on the Publication Model. |
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*/ |
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public function extractIdentifiersData() |
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{ |
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foreach ($this->searchTree->PubmedData->ArticleIdList->ArticleId as $identifier) { |
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$this->output['identifiers'][] = [ |
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'value' => (string) $identifier, |
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'type' => (string) $identifier['IdType'], |
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]; |
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} |
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if ($value = get_string($this->searchTree, 'MedlineCitation.Article.Journal.ISSN')) { |
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$this->output['identifiers'][] = [ |
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'value' => $value, |
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'type' => 'issn', |
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]; |
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} |
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} |
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/** |
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* Extract and format data needed for the Journals Relationship |
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* on the Publication Model. |
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*/ |
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public function extractJournalData() |
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{ |
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$this->output['journal'] = [ |
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'title' => get_string($this->searchTree, 'MedlineCitation.Article.Journal.Title'), |
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'issn' => $this->getIssns(), |
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]; |
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} |
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/** |
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* Extract and format data needed for the Authors Relationship |
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* on the Publication Model. |
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*/ |
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public function extractAuthorsData() |
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{ |
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try { |
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$this->loopOverAuthors(); |
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} catch (\Exception $e) { |
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// Empty catch block, don't want anything to happen in case of exception. |
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} |
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} |
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/** |
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* Get all available ISSNs values from the tree. |
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* |
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* @return array |
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*/ |
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protected function getIssns() |
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{ |
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$issn = []; |
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if ($number = get_string($this->searchTree, 'MedlineCitation.Article.Journal.ISSN')) { |
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$issn[] = $number; |
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} |
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if ($number = get_string($this->searchTree, 'MedlineCitation.MedlineJournalInfo.ISSNLinking')) { |
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$issn[] = $number; |
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} |
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return $issn; |
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} |
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/** |
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* Loop over authors array. |
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*/ |
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protected function loopOverAuthors(): void |
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{ |
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foreach ($this->searchTree->MedlineCitation->Article->AuthorList->Author as $author) { |
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$this->createAuthorEntry($author); |
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} |
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} |
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/** |
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* Create an author entry in output. |
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* |
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* @param $author |
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*/ |
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protected function createAuthorEntry($author): void |
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{ |
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if (! empty($lastName = get_string($author, 'LastName'))) { |
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$affiliations = $this->loopOverAffiliations($author); |
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$this->output['authors'][] = [ |
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'first_name' => get_string($author, 'ForeName'), |
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'last_name' => $lastName, |
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'email' => $this->getEmailsFromAffiliations($affiliations), |
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'affiliation' => $affiliations, |
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]; |
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} |
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} |
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/** |
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* Loop over affiliations. |
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* |
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* @param array $author |
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* @return array |
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*/ |
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protected function loopOverAffiliations($author): array |
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{ |
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$affiliations = []; |
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foreach ($author->AffiliationInfo as $affiliation) { |
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$affiliations[]['name'] = get_string($affiliation, 'Affiliation'); |
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} |
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return $affiliations; |
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} |
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/** |
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* Get emails from affiliations array. |
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* |
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* @param array $affiliations |
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* @return string |
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*/ |
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protected function getEmailsFromAffiliations($affiliations): string |
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{ |
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return get_string(find_emails_in_array(Arr::pluck($affiliations, 'name')), 0); |
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} |
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} |
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PubPeerFoundation /
PublicationDataExtractor
